Apparatus for washing gas.



No. 791,160. PATENTED MAY 30, 1905.

J. -S.. OURSLER.

' APPARATUS FOR WASHING GAS.

APPLICATION FILED JULY 23, 1904.

Z BHEE TSSHBET 1.

WITNEI58E$ ilNVENTOR PATENTED MAY 30,1905; J; S. OURSLER. APPARATUS FORWASHING GAS.

APPLIGATION FILED JULY 23, 1904.

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" UNITED STATES Patented May 30, 1905.

PATENT OFFICE.

HALF TO JOHN REIS, OF NEWCASTLE, PENNSYLVANIA.

APPARATUS FOR WASHING GAS- SPECIFICATION forming. part of Letters PatentNo. 791,160, dated May 30, 1905.

' Application filed July 23, 1904. Serial No. 217,786.

To dZZ whom it may concern.-

Be it known that I, Jornv S. OURSLER, of Newcastle, in the county ofLawrence and State of Pennsylvania, have invented a certain new anduseful Improvement in Apparatus for Washing Gas, of which the followingis a full, clear, and exact description, reference being hadto theaccompanying drawings, forming part of this specification, in

which Figure 1 is an elevation, partly in section, illustrating myimproved gas-washer. Fig. 2 is a longitudinalhorizontal sectional view,

' and Fig. 3 is a cross vertical sectional view.

Like symbols of reference indicate like parts wherever they occur;

'My invention relates to an improved apparatus for washing the gasesdrawn from the blast-furnace for the purpose of removing the dirt, dust,and moisture that passes with the gas from the furnace, and thus renderthe gas non-1n3ur1ous to the hot-blast stove, boilerfurnace, gas-engine,or other appliance'to which the gas may be conducted.

In modern blast-furnace practice it is customary to draw from thefurnace-stack the gases which are generated in the blast-furnace and tolead them to the furnace under the steam-boilers, where they serve asfuel for the fire. These gases, while they are composed of hydrogen,oxygen, and carbon, are impure in the condition in which they pass fromthe furnacethat is, they are mingled with solid particles of silicon,iron ore, and other foreign matter and also a certainpercentage ofmoisture to such an extent as to prevent the economical use of the gaseswhile in their crude condition in the hot-blast stoves, in gas-engines,or in other furnaces or regenerators where this foreign matter ormoisture would be injurious to the brickwork or mechanical parts eitherthrough disintegration of the brick or through V the clogging or cuttingof flues or parts. To

remove this foreign matter from the gases, one method is to cause thegas as 1t comes from the blast-furnace to pass through water in and tothe parts of gas-enginesso much so that where this moisture exists inthe gas to any considerable extent it renders the gas unfit for use.

The object of my invention is to thoroughly wash the gas to removeimpurities and also the moisture which passes with the gas from theblast-furnace.

I will now describe my invention, so that others skilled in the art maymanufacture and use the same.

My invention consists in a gas-washer adapted to cause the gas to passin a sheet against and into a stream of water, sprays of water beingemployed to aid in the washing and cooling of the gas, devices beingprovided for the collection and separation of the foreign matter anddevices being provided for preventing the cold water from collecting inthe bottom of the washer out of reach of the gases.

In the drawings, 2 represents the body of the washer, consisting,preferably, of a long commodious horizontal receiving chamber adapted toreceive the gas from the furnace. This chamber is shown pear-shaped incross sectionthat is, it has a rounded or cylindrical roof and sidewall, which converge to a slot or long narrow opening 3 at the bottom,which opening extends the entirelength of the chamber. At one end of thechamber 2 and opening thereinto is a pipe or conduit 4:, which serves tolead the gas to the receiving-chamber from the blast-furnace. Below thereceiving-chamber 2 is the washing-chamber 5, into which the verticalwalls of the lower portion of the chamber 2 extend to such a depth as tobring the slot 3 below the water-level in the washingchamber. The

atmosphere. This chamber 5 is adapted to contain a large bath of flowingwater, the level of which is above the mouth of the slot 3, whereby thegas as it passes fromthe chamber 52 through the slot 3 is compelled topass through the water, and rising therefrom it collects in the upperportion of the chamber 5. The effect of this is not only to wash the gasand separate the dust and impurities therefrom, but also to lower itstemperature, and as the temperature of the gas is lowered the moisturecontained within the gas becomes condensed and separates therefrom. Atone end of the chamber 5 is an inlet-pipe 6 for the water-supply, and atthe other end of this chamber is an adjustable overflow-dam 7, which iswater-sealed and allows the water to flow from the chamber 5. dam may beadjusted at the height desired to cause a greater or less depth of waterin the washing chamber. At the bottom of the chamber 5 are conicalpockets 8, arranged in series one beside the other, the purpose of whichis to receive the deposit of dust, which in the condition of softflowing mud may be drawn off from time to time at the bottom of thepockets by means of the valves 9. Along the sides of the upper portionof the pockets 9 are pockets 10, which are also so constructed as to besealed by the water in the chamber 5, and they serve as poke-holesthrough which access may be had to the pockets 9 to aid in forcing themud through the valveports by means of poles. Leading from the top ofthe chamber 5 are the gas-outlet pipes 11, by means of which the gas isled to the conduit that conducts the gas to the place of use.

In order to aid in the cooling and washing of the gas, I employ a seriesof spray-pipes, one of which, 12, extends longitudinally in thereceiving-chamber 2 above the slot 3 and sprays water downwardly intothe slot. Other spray-pipes, 13, extend across the upper portion of thepockets 9 and spray the water upwardly. These latter sprays serve toagitate the Water in the washing-chamber.

To prevent the colder water from collecting in the pockets 9and to causeit to come in direct contact with the gas as it passes from the slot 3,I employ vertical plates 14, situate in the chamber 5 below the level ofthe water and below the level of the mouth of the slot 3. These platesor partitions extend upwardly from the ridges between the pockets to apoint just below the surface of the water in the chamber and serve tocause the cold water coming from the pipe 6 to overflow the plates 14and distribute itself throughout the chamber 5. Another important oflieeof the partition 14 is to enable the scum to be drained from the entiresurface of the water in the chamber 5. This scum, which is composed ofthe impurities separated from the gas, floats on the surface of thewater, and if allowed to accumulate it would soon so cover the surfaceThis overflowof the water as to prevent the gas from coming in contacttherewith. By opening the valve 9 of any one of the pockets 8 the scumwill be drawn off as the water passes out of that pocket withoutemptying the remaining pockets of the series.

lVhile I prefer to have the washer much longer than its width, yet itmay be of any shape-square, rectangular, or circularand as it ispreferably low and extended in form the waste water from the furnace maybe used in the washing-chamber. As the washer receives its water at oneend and discharges it at the other and as the flow of water is in thesame direction as the flow of gas, all the scum and foam arising fromthe impurities [low to the discharge end of the chamber 5, where theyare at intervals blown from the washer. As there. are no surfacecross-partitions in the chambers 2 and 5, the flow of water and gas ispractically uninterrupted.

The advantages of my invention will be appreciated by those skilled inthe art.

Although I have shown the partitions 14 as plates extending from theridges of the pockets, I do not desire to limit myself to thisconstruction.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. In apparatus for washing gas, a receivingchamber having an inletgas-pipe, a washingehamber having a series of dust-receiving pockets, anextended narrow passage for permitting the gas to flow in a thin stratumfrom the receiving-chamber to the washing-chamber below the level of thewater-outlet, and a series of plates situate below the mouth of thenarrow passage and extending below the level of the water-outlet;substantially as specified.

2. In apparatus for washing gas, a receivingchamber having an inletgas-pipe, a washingchamber having a series of dust-receiving pockets, aseries of water-sealed pockets communicating with the dust-receivingpockets, an extended, narrow passage for permitting the gas to flow in athin stream from the receiving-chamber to the washing-chamber below thelevel of the water-outlet, and a gasoutlet conduit; substantially asspecified.

3. In apparatus for washing gas, areceivingchamber having an inletgas-pipe, a washingchamber situate below the receiving-chamber, a narrowchannel having vertical sides and extending from the receiving-chamberto a point below the surface of the water in the washing-ehai'nber, aseries of dust-receiving pockets in the bottom portion of thewashingchamber, and a series of vertical plates situate below the mouthof the channel and below the level of the water-outlet; substantially asspecified.

4. An apparatus for washing gas, a receiving-chamber having an inletgas-pipe, a washingchamber situate below the receiving- 79 1 ,1eo k 8chamber, a narrow channel havingvertieal bottom of the pockets;substantially as speci- IO sides and extending from thereceiving-ehamed.

her to a point below the Water-outlet in the In testimony whereof I havehereunto set Washing-chamber, a series of (lust-receiving my hand.pockets in the bottom portion of the Washingohamber, the pockets beingseparated from JOHN OURSLER' each other by partitions, extending to apoint Witnesses: i just below the level of the water-outlet of the A. M.STEEN,

Washing-chamber, and drain-openings at the JAMES V. BAKEWELL.

